Directors Anthony and Joe Russo have spoken about their upcoming Captain America: Civil War, and teased some of the plans for Infinity War along the way.

In an interview with Forbes, the Russo brothers said "there are certain characters that you don't know" coming to Avengers: Infinity War (which they're also directing). However, even they don't fully know the extent of the new characters, as the film is still being outlined and hasn't got a script yet. "We have an idea but let’s see if that evolves over the next couple of months," said Anthony.

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Of course, Spider-Man made an appearance at the end of the most recent Civil War trailer, and Joe says that they "always intended to" put him there before going on to add, "I think people are going to be happy with him in the movie, he’s got a very interesting role in it."

Anthony added that "it was a very complicated deal that Sony had to work out with Marvel Studios and Disney in order to make [Spider-Man joining the MCU] work. We were very quiet about Spider-Man’s involvement in the movie for much longer than we would have been. We were artificially silent on the character because it was such a sensitive business deal still being worked out even while we were shooting. We went through a very thorough casting process, we tested Tom Holland vigorously with Chris Evans and Robert Downey Jr,, we screen tested him along with several other actors, it was a very intense part of making Captain America: Civil War because he was an important part of the movie to us."

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In response to the mixed reaction Spider-Man's costume has received in some quarters, Joe says, "The design of the costume is what it is. That’s the design that we love, it’s the design that [producer] Kevin Feige loves and so on." The brothers were unable to confirm if Spider-Man will be appearing in Infinity War, although they did say that the character could see his costume and appearance change in future films.

They also spoke about the pros and cons of this being Spider-Man's third movie incarnation in a little over a decade. Joe said there is "the fatigue factor that comes with it" but "at the end of the day, the purpose here is to deliver a Spider-Man that people will **** themselves over."

As for the end of Captain America: Civil War, the Russo brothers confirmed that you should "stay sat in your seats when the movie is done" for some kind of stinger or Easter eggs. Joe said "We can’t say who is going to be in it but we can say that there certainly could be one, or two, maybe three."